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or the module cannot work well
The main purpose of this IRF520 MOSFET Driver Module Board compatible with Arduino is to provide a low-cost way to drive a DC motor for robotics applications
allowing the conversion of 4 pins on the high side to 4 pins on the low side
21* U9 GPIO1_30 gpmc_csn1 gpmc_clk mmc1_clk*
you can add as many Relays as you want
74HC244 Octal 3-State Buffer/Line Driver IC (74244 IC) DIP-20 Package (323) Size:Default Title or the module cannot workOctal 3 State Buffer Line Driver IC 74HC244 The 74HC Series 74HC244 buffers line drivers are designed to improve both the performance and PC board density of 3 STATE buffers drivers employed as memory address drivers, clock drivers, and bus oriented transmitters receivers. Featuring 400 mV of hysteresis at each low current PNP data line input, they provide improved noise rejection and high fan out outputs and can be used to drive terminated lines down